Window regulator



April 29, 1924. ,491,973

P. w. sr-:ILER

WINDOW REGULATOR Filed Oct. 14. 1922 tpetentecl pr. 29, 192e.

@MTO STTES lddll PATENT @FFME PAUL W. SEIIIER, OF DETROIT, MICHIGAN,ASSIGNOB TO TERNSTEDT MANUFACTUR- ING COMPANY, QF DETROIT, MICHIGAN, ACORPORATION OF MICHIGAN.

WIN DOW REGULATOR.

Application filed October 14, 1922. Serial No. 594,534.

To all 107mm t may concer/c.'

Be it known that I, PAUL lV. SE1LnRciti zen of the United States,residing at Detroit, in the county oi lVayne and State of Michigan, haveinvented certain new and useful Improvements in VVindOw Regulators, orwhich the following is a specification.

This invention relates to window regulators and has for its object awindow regulator provided with a peculiar assembly i'or theeountenbalancing spring and special provision to prevent the rattling ofthe counterbalancing spring. This diliiculty due to vibration wasrecognized and provided for in the prior. Allmand and Lawrence Patent1,278,554 where a cupped gear and spring cup housed thecounter-balancing spring.

It is the object of the present invention to eliminate the necessity ofa spring cup and to provide a spring stress which will hold thecounter-balancing spring and prevent vibration and objectionablerattling or chattering.

ln the drawings:

Fig. l is an elevation of the top portion of a window regulator.

Fig. 2 is a section taken on the line 2-2 of Fig. 1.

Fig. 3 is a section taken on the line 3 3 of Fig. 2.

The regulator here shown happens to be a chain one in which a chain Lruns over a sprocket wheel o. This is connected with a driven gear wheelc by means of a'bolt cl. A bushing e is secured on to the end of thebolt by the nut j. This bushing e rotates in the bea-ring g pressed fromthe coverplate. The driven gear c is simply a stamping with a pluralityof cireularly arranged lugs h punched out ot the web of the gear wheelto form a spring casing. This is all that is necessary to hold thespring on the outside to prevent the saine from moving outwardly.

However, the spring is still free to move r sidcwise. hence l provideone or more large flexible spring metal washers j. These are bowed andare bowed preferably only in such a way that they are really segments ofa hollow cylinder rather than segments of a sphere. This is shown by theshading in Fig. 3, hence they will yieldingly contact every whorl of thespiral. spring, yieldingly hold the same in place and preventing thesame from chattering with the vibration of the vehicle. This whollyeliminates 'any chattering or singing of the spring' when the car isrunning over a rough road and` aids in securing an absolutely noiselessclosed body construction. The inside of these regulators, that is t-heinternal of the cover plate, is packed with grease so that there is noobjectionable friction or noise by rubbing.

It will be apparent that this is of even cheaper construct-ion than thespring cup shown and claimed in the above rel-erred to Allmand andLawrence patent.

That I claim is:

l. In a window regulator, the combina tion of a gear, a casing in whichthe same is rotatably supported, a spiral counter-balanc- 'in s Jrincontained in the casino ad'aeent to the gear and one or more springmetal washers bearing against the spiral spring to prevent vibration.

2. In a window regulator, the combination of a easing, a gear rotatablysupported in the casing, a spiral counter-balancing spring supported inthe casing adjacent to the gear and one or more spring metal washersbearing against the spring to prevent vibration, each washer in the formof a circular segment of a hollow cylinder.

3. In a window regulator, the combination of a casing, a gear rotatablysupported in the casing and provided with punched-out lugs, a spiralcounter-balancing spring contained within the punched out lugs of thegear and one or more bowed spring metal PAUL W. SEILER.

